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  1. NNPackerfan

    Wye Delta starter breaker trip on Startup

    I have a Wye-Delta starter (440VAC) with a 800hp motor and am having intermittent tripping during motor starting. Motor LRA test data (Delta-Run) is 5980 amps and motor manufacturer and various publications are estimating that starting current in Y should be approximately 1/3 of the delta...
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